Finding the Fourth Proportional to 91,607.49, 137,248.12 and 56,051.43

Step by Step Solution

1. Step 1: Write the proportion equation
   91,607.49 : 137,248.12 = 56,051.43 : x
2. Step 2: Convert to fraction form
   91,607.49/137,248.12 = 56,051.43/x
3. Step 3: Cross multiply
   91,607.49x = 137,248.12 × 56,051.43
4. Step 4: Simplify right side
   91,607.49x = 7,692,952,946.20
5. Step 5: Solve for x
   x = 7,692,952,946.20/91,607.49
6. Step 6: Final answer
   x = 83,977.34