Finding the Fourth Proportional to 139,815,927.69, 209,716,282.93 and 42,771,635.34

Step by Step Solution

1. Step 1: Write the proportion equation
   139,815,927.69 : 209,716,282.93 = 42,771,635.34 : x
2. Step 2: Convert to fraction form
   139,815,927.69/209,716,282.93 = 42,771,635.34/x
3. Step 3: Cross multiply
   139,815,927.69x = 209,716,282.93 × 42,771,635.34
4. Step 4: Simplify right side
   139,815,927.69x = 8,969,908,378,342,228
5. Step 5: Solve for x
   x = 8,969,908,378,342,228/139,815,927.69
6. Step 6: Final answer
   x = 64,155,125.43