Finding the Fourth Proportional to 12,156,410.52, 18,235,892.82 and 3,959,691.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,156,410.52 : 18,235,892.82 = 3,959,691.48 : x
2. Step 2: Convert to fraction form
   12,156,410.52/18,235,892.82 = 3,959,691.48/x
3. Step 3: Cross multiply
   12,156,410.52x = 18,235,892.82 × 3,959,691.48
4. Step 4: Simplify right side
   12,156,410.52x = 72,208,509,429,547.17
5. Step 5: Solve for x
   x = 72,208,509,429,547.17/12,156,410.52
6. Step 6: Final answer
   x = 5,939,953.19