Finding the Fourth Proportional to 78,402.76, 108,197.76 and 42,592.76

Step by Step Solution

1. Step 1: Write the proportion equation
   78,402.76 : 108,197.76 = 42,592.76 : x
2. Step 2: Convert to fraction form
   78,402.76/108,197.76 = 42,592.76/x
3. Step 3: Cross multiply
   78,402.76x = 108,197.76 × 42,592.76
4. Step 4: Simplify right side
   78,402.76x = 4,608,441,224.22
5. Step 5: Solve for x
   x = 4,608,441,224.22/78,402.76
6. Step 6: Final answer
   x = 58,779.07