Finding the Fourth Proportional to 139,443,423.03, 209,190,667.80 and 57,517,608.42

Step by Step Solution

1. Step 1: Write the proportion equation
   139,443,423.03 : 209,190,667.80 = 57,517,608.42 : x
2. Step 2: Convert to fraction form
   139,443,423.03/209,190,667.80 = 57,517,608.42/x
3. Step 3: Cross multiply
   139,443,423.03x = 209,190,667.80 × 57,517,608.42
4. Step 4: Simplify right side
   139,443,423.03x = 12,032,146,915,638,704
5. Step 5: Solve for x
   x = 12,032,146,915,638,704/139,443,423.03
6. Step 6: Final answer
   x = 86,286,944.58