Finding the Fourth Proportional to 137,309,152.77, 189,536,353.11 and 90,914,353.47

Step by Step Solution

1. Step 1: Write the proportion equation
   137,309,152.77 : 189,536,353.11 = 90,914,353.47 : x
2. Step 2: Convert to fraction form
   137,309,152.77/189,536,353.11 = 90,914,353.47/x
3. Step 3: Cross multiply
   137,309,152.77x = 189,536,353.11 × 90,914,353.47
4. Step 4: Simplify right side
   137,309,152.77x = 17,231,575,002,057,274
5. Step 5: Solve for x
   x = 17,231,575,002,057,274/137,309,152.77
6. Step 6: Final answer
   x = 125,494,729.63