Finding the Fourth Proportional to 78,238,976.10, 109,761,314.70 and 78,238,976.10

Step by Step Solution

1. Step 1: Write the proportion equation
   78,238,976.10 : 109,761,314.70 = 78,238,976.10 : x
2. Step 2: Convert to fraction form
   78,238,976.10/109,761,314.70 = 78,238,976.10/x
3. Step 3: Cross multiply
   78,238,976.10x = 109,761,314.70 × 78,238,976.10
4. Step 4: Simplify right side
   78,238,976.10x = 8,587,612,877,517,878
5. Step 5: Solve for x
   x = 8,587,612,877,517,878/78,238,976.10
6. Step 6: Final answer
   x = 109,761,314.70