Finding the Fourth Proportional to 140,685,514.61, 194,156,780.69 and 88,519,266.05

Step by Step Solution

1. Step 1: Write the proportion equation
   140,685,514.61 : 194,156,780.69 = 88,519,266.05 : x
2. Step 2: Convert to fraction form
   140,685,514.61/194,156,780.69 = 88,519,266.05/x
3. Step 3: Cross multiply
   140,685,514.61x = 194,156,780.69 × 88,519,266.05
4. Step 4: Simplify right side
   140,685,514.61x = 17,186,615,724,560,126
5. Step 5: Solve for x
   x = 17,186,615,724,560,126/140,685,514.61
6. Step 6: Final answer
   x = 122,163,363.96