Finding the Fourth Proportional to 92,276, 138,423.72 and 42,347.60

Step by Step Solution

1. Step 1: Write the proportion equation
   92,276 : 138,423.72 = 42,347.60 : x
2. Step 2: Convert to fraction form
   92,276/138,423.72 = 42,347.60/x
3. Step 3: Cross multiply
   92,276x = 138,423.72 × 42,347.60
4. Step 4: Simplify right side
   92,276x = 5,861,912,325.07
5. Step 5: Solve for x
   x = 5,861,912,325.07/92,276
6. Step 6: Final answer
   x = 63,525.86