Finding the Fourth Proportional to 139,828,250.16, 209,743,038.63 and 42,783,802.92

Step by Step Solution

1. Step 1: Write the proportion equation
   139,828,250.16 : 209,743,038.63 = 42,783,802.92 : x
2. Step 2: Convert to fraction form
   139,828,250.16/209,743,038.63 = 42,783,802.92/x
3. Step 3: Cross multiply
   139,828,250.16x = 209,743,038.63 × 42,783,802.92
4. Step 4: Simplify right side
   139,828,250.16x = 8,973,604,828,587,867
5. Step 5: Solve for x
   x = 8,973,604,828,587,867/139,828,250.16
6. Step 6: Final answer
   x = 64,175,907.36