Finding the Fourth Proportional to 139,441,821.83, 208,920,336.52 and 97,854,496.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,441,821.83 : 208,920,336.52 = 97,854,496.86 : x
2. Step 2: Convert to fraction form
   139,441,821.83/208,920,336.52 = 97,854,496.86/x
3. Step 3: Cross multiply
   139,441,821.83x = 208,920,336.52 × 97,854,496.86
4. Step 4: Simplify right side
   139,441,821.83x = 20,443,794,413,986,484
5. Step 5: Solve for x
   x = 20,443,794,413,986,484/139,441,821.83
6. Step 6: Final answer
   x = 146,611,641.66