Finding the Fourth Proportional to 101,335.25, 139,840.43 and 56,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   101,335.25 : 139,840.43 = 56,011.50 : x
2. Step 2: Convert to fraction form
   101,335.25/139,840.43 = 56,011.50/x
3. Step 3: Cross multiply
   101,335.25x = 139,840.43 × 56,011.50
4. Step 4: Simplify right side
   101,335.25x = 7,832,671,964.89
5. Step 5: Solve for x
   x = 7,832,671,964.89/101,335.25
6. Step 6: Final answer
   x = 77,294.64