Finding the Fourth Proportional to 14,070.34, 19,414.77 and 7,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,070.34 : 19,414.77 = 7,781.50 : x
2. Step 2: Convert to fraction form
   14,070.34/19,414.77 = 7,781.50/x
3. Step 3: Cross multiply
   14,070.34x = 19,414.77 × 7,781.50
4. Step 4: Simplify right side
   14,070.34x = 151,076,032.76
5. Step 5: Solve for x
   x = 151,076,032.76/14,070.34
6. Step 6: Final answer
   x = 10,737.20