Finding the Fourth Proportional to 139,543,196.28, 209,298,849.30 and 37,315,208.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,543,196.28 : 209,298,849.30 = 37,315,208.76 : x
2. Step 2: Convert to fraction form
   139,543,196.28/209,298,849.30 = 37,315,208.76/x
3. Step 3: Cross multiply
   139,543,196.28x = 209,298,849.30 × 37,315,208.76
4. Step 4: Simplify right side
   139,543,196.28x = 7,810,030,254,857,280
5. Step 5: Solve for x
   x = 7,810,030,254,857,280/139,543,196.28
6. Step 6: Final answer
   x = 55,968,549.26