Finding the Fourth Proportional to 76,872,079.92, 106,083,469.20 and 42,064,769.34

Step by Step Solution

1. Step 1: Write the proportion equation
   76,872,079.92 : 106,083,469.20 = 42,064,769.34 : x
2. Step 2: Convert to fraction form
   76,872,079.92/106,083,469.20 = 42,064,769.34/x
3. Step 3: Cross multiply
   76,872,079.92x = 106,083,469.20 × 42,064,769.34
4. Step 4: Simplify right side
   76,872,079.92x = 4,462,376,662,684,995
5. Step 5: Solve for x
   x = 4,462,376,662,684,995/76,872,079.92
6. Step 6: Final answer
   x = 58,049,381.09