Finding the Fourth Proportional to 238,389,312.72, 328,947,736.12 and 137,935,017.84

Step by Step Solution

1. Step 1: Write the proportion equation
   238,389,312.72 : 328,947,736.12 = 137,935,017.84 : x
2. Step 2: Convert to fraction form
   238,389,312.72/328,947,736.12 = 137,935,017.84/x
3. Step 3: Cross multiply
   238,389,312.72x = 328,947,736.12 × 137,935,017.84
4. Step 4: Simplify right side
   238,389,312.72x = 45,373,411,850,139,816
5. Step 5: Solve for x
   x = 45,373,411,850,139,816/238,389,312.72
6. Step 6: Final answer
   x = 190,333,246.62