Finding the Fourth Proportional to 140,685,516.61, 194,156,783.46 and 88,519,268.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,685,516.61 : 194,156,783.46 = 88,519,268.05 : x
2. Step 2: Convert to fraction form
   140,685,516.61/194,156,783.46 = 88,519,268.05/x
3. Step 3: Cross multiply
   140,685,516.61x = 194,156,783.46 × 88,519,268.05
4. Step 4: Simplify right side
   140,685,516.61x = 17,186,616,357,408,168
5. Step 5: Solve for x
   x = 17,186,616,357,408,168/140,685,516.61
6. Step 6: Final answer
   x = 122,163,366.72