Finding the Fourth Proportional to 52,565,348.16, 78,738,156 and 42,274,555.20

Step by Step Solution

1. Step 1: Write the proportion equation
   52,565,348.16 : 78,738,156 = 42,274,555.20 : x
2. Step 2: Convert to fraction form
   52,565,348.16/78,738,156 = 42,274,555.20/x
3. Step 3: Cross multiply
   52,565,348.16x = 78,738,156 × 42,274,555.20
4. Step 4: Simplify right side
   52,565,348.16x = 3,328,620,522,168,211.50
5. Step 5: Solve for x
   x = 3,328,620,522,168,211.50/52,565,348.16
6. Step 6: Final answer
   x = 63,323,475.23