Finding the Fourth Proportional to 423,088,016.10, 633,437,630.55 and 423,088,016.10

Step by Step Solution

1. Step 1: Write the proportion equation
   423,088,016.10 : 633,437,630.55 = 423,088,016.10 : x
2. Step 2: Convert to fraction form
   423,088,016.10/633,437,630.55 = 423,088,016.10/x
3. Step 3: Cross multiply
   423,088,016.10x = 633,437,630.55 × 423,088,016.10
4. Step 4: Simplify right side
   423,088,016.10x = 267,999,870,432,484,256
5. Step 5: Solve for x
   x = 267,999,870,432,484,256/423,088,016.10
6. Step 6: Final answer
   x = 633,437,630.55