Finding the Fourth Proportional to 19,991,429.48, 29,987,144.56 and 4,845,360.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,991,429.48 : 29,987,144.56 = 4,845,360.98 : x
2. Step 2: Convert to fraction form
   19,991,429.48/29,987,144.56 = 4,845,360.98/x
3. Step 3: Cross multiply
   19,991,429.48x = 29,987,144.56 × 4,845,360.98
4. Step 4: Simplify right side
   19,991,429.48x = 145,298,540,233,667.84
5. Step 5: Solve for x
   x = 145,298,540,233,667.84/19,991,429.48
6. Step 6: Final answer
   x = 7,268,041.56