Finding the Fourth Proportional to 77,075,721.52, 106,354,719.76 and 42,259,250.12

Step by Step Solution

1. Step 1: Write the proportion equation
   77,075,721.52 : 106,354,719.76 = 42,259,250.12 : x
2. Step 2: Convert to fraction form
   77,075,721.52/106,354,719.76 = 42,259,250.12/x
3. Step 3: Cross multiply
   77,075,721.52x = 106,354,719.76 × 42,259,250.12
4. Step 4: Simplify right side
   77,075,721.52x = 4,494,470,703,780,346.50
5. Step 5: Solve for x
   x = 4,494,470,703,780,346.50/77,075,721.52
6. Step 6: Final answer
   x = 58,312,405.19