Finding the Fourth Proportional to 86,172,761.86, 129,249,567.52 and 30,838,356.86

Step by Step Solution

1. Step 1: Write the proportion equation
   86,172,761.86 : 129,249,567.52 = 30,838,356.86 : x
2. Step 2: Convert to fraction form
   86,172,761.86/129,249,567.52 = 30,838,356.86/x
3. Step 3: Cross multiply
   86,172,761.86x = 129,249,567.52 × 30,838,356.86
4. Step 4: Simplify right side
   86,172,761.86x = 3,985,844,286,632,393
5. Step 5: Solve for x
   x = 3,985,844,286,632,393/86,172,761.86
6. Step 6: Final answer
   x = 46,254,108.62