Finding the Fourth Proportional to 88,947.42, 133,437.30 and 42,199.86

Step by Step Solution

1. Step 1: Write the proportion equation
   88,947.42 : 133,437.30 = 42,199.86 : x
2. Step 2: Convert to fraction form
   88,947.42/133,437.30 = 42,199.86/x
3. Step 3: Cross multiply
   88,947.42x = 133,437.30 × 42,199.86
4. Step 4: Simplify right side
   88,947.42x = 5,631,035,378.78
5. Step 5: Solve for x
   x = 5,631,035,378.78/88,947.42
6. Step 6: Final answer
   x = 63,307.46