Finding the Fourth Proportional to 40,485,061.55, 55,811,276.28 and 28,862,446.88

Step by Step Solution

1. Step 1: Write the proportion equation
   40,485,061.55 : 55,811,276.28 = 28,862,446.88 : x
2. Step 2: Convert to fraction form
   40,485,061.55/55,811,276.28 = 28,862,446.88/x
3. Step 3: Cross multiply
   40,485,061.55x = 55,811,276.28 × 28,862,446.88
4. Step 4: Simplify right side
   40,485,061.55x = 1,610,849,996,657,447.75
5. Step 5: Solve for x
   x = 1,610,849,996,657,447.75/40,485,061.55
6. Step 6: Final answer
   x = 39,788,750.10