Finding the Fourth Proportional to 113,315,406.10, 169,973,109.15 and 78,878,029.30

Step by Step Solution

1. Step 1: Write the proportion equation
   113,315,406.10 : 169,973,109.15 = 78,878,029.30 : x
2. Step 2: Convert to fraction form
   113,315,406.10/169,973,109.15 = 78,878,029.30/x
3. Step 3: Cross multiply
   113,315,406.10x = 169,973,109.15 × 78,878,029.30
4. Step 4: Simplify right side
   113,315,406.10x = 13,407,143,883,745,798
5. Step 5: Solve for x
   x = 13,407,143,883,745,798/113,315,406.10
6. Step 6: Final answer
   x = 118,317,043.95