Finding the Fourth Proportional to 90,292,344,108, 135,349,054,288.02 and 42,399,620,838.10

Step by Step Solution

1. Step 1: Write the proportion equation
   90,292,344,108 : 135,349,054,288.02 = 42,399,620,838.10 : x
2. Step 2: Convert to fraction form
   90,292,344,108/135,349,054,288.02 = 42,399,620,838.10/x
3. Step 3: Cross multiply
   90,292,344,108x = 135,349,054,288.02 × 42,399,620,838.10
4. Step 4: Simplify right side
   90,292,344,108x = 5,738,748,582,607,460,499,456
5. Step 5: Solve for x
   x = 5,738,748,582,607,460,499,456/90,292,344,108
6. Step 6: Final answer
   x = 63,557,421,609.78