Finding the Fourth Proportional to 113,835.78, 156,947.31 and 93,342.33

Step by Step Solution

1. Step 1: Write the proportion equation
   113,835.78 : 156,947.31 = 93,342.33 : x
2. Step 2: Convert to fraction form
   113,835.78/156,947.31 = 93,342.33/x
3. Step 3: Cross multiply
   113,835.78x = 156,947.31 × 93,342.33
4. Step 4: Simplify right side
   113,835.78x = 14,649,827,602.63
5. Step 5: Solve for x
   x = 14,649,827,602.63/113,835.78
6. Step 6: Final answer
   x = 128,692.64