Finding the Fourth Proportional to 139,851,506.80, 209,796,404.96 and 47,710,506.08

Step by Step Solution

1. Step 1: Write the proportion equation
   139,851,506.80 : 209,796,404.96 = 47,710,506.08 : x
2. Step 2: Convert to fraction form
   139,851,506.80/209,796,404.96 = 47,710,506.08/x
3. Step 3: Cross multiply
   139,851,506.80x = 209,796,404.96 × 47,710,506.08
4. Step 4: Simplify right side
   139,851,506.80x = 10,009,492,654,406,222
5. Step 5: Solve for x
   x = 10,009,492,654,406,222/139,851,506.80
6. Step 6: Final answer
   x = 71,572,290.38